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A diacritic is a glyph added to a letter or to a basic glyph. The term derives from the Ancient Greek διακριτικός,from διακρίνω. The word diacritic is a noun,though it is sometimes used in an attributive sense,whereas diacritical is only an adjective. Some diacritics,such as the acute ⟨ó⟩,grave ⟨ò⟩,and circumflex ⟨ô⟩,are often called accents. Diacritics may appear above or below a letter or in some other position such as within the letter or between two letters.
E,or e,is the fifth letter and the second vowel letter of the Latin alphabet,used in the modern English alphabet,the alphabets of other western European languages and others worldwide. Its name in English is e;plural es,Es,or E's.
E-commerce is the activity of electronically buying or selling products and services on online platforms or over the Internet. E-commerce draws on technologies such as mobile commerce,electronic funds transfer,supply chain management,Internet marketing,online transaction processing,electronic data interchange (EDI),inventory management systems,and automated data collection systems. E-commerce is the largest sector of the electronics industry and is in turn driven by the technological advances of the semiconductor industry.
The number e is a mathematical constant approximately equal to 2.71828 that is the base of the natural logarithm and exponential function. It is sometimes called Euler's number,after the Swiss mathematician Leonhard Euler,though this can invite confusion with Euler numbers,or with Euler's constant,a different constant typically denoted . Alternatively,e can be called Napier's constant after John Napier. The Swiss mathematician Jacob Bernoulli discovered the constant while studying compound interest.
In probability theory,the expected value is a generalization of the weighted average. Informally,the expected value is the mean of the possible values a random variable can take,weighted by the probability of those outcomes. Since it is obtained through arithmetic,the expected value sometimes may not even be included in the sample data set;it is not the value you would "expect" to get in reality.
The International Phonetic Alphabet (IPA) is an alphabetic system of phonetic notation based primarily on the Latin script. It was devised by the International Phonetic Association in the late 19th century as a standard written representation for the sounds of speech. The IPA is used by lexicographers,foreign language students and teachers,linguists,speech–language pathologists,singers,actors,constructed language creators,and translators.
In geography,latitude is a coordinate that specifies the north–south position of a point on the surface of the Earth or another celestial body. Latitude is given as an angle that ranges from −90°at the south pole to 90°at the north pole,with 0°at the Equator. Lines of constant latitude,or parallels,run east–west as circles parallel to the equator. Latitude and longitude are used together as a coordinate pair to specify a location on the surface of the Earth.
Robert Edward Lee was a Confederate general during the American Civil War,toward the end of which he was appointed the overall commander of the Confederate States Army. He led the Army of Northern Virginia,the Confederacy's most powerful army,from 1862 until its surrender in 1865,earning a reputation as a skilled tactician.
In probability theory and statistics,variance is the expected value of the squared deviation from the mean of a random variable. The standard deviation (SD) is obtained as the square root of the variance. Variance is a measure of dispersion,meaning it is a measure of how far a set of numbers is spread out from their average value. It is the second central moment of a distribution,and the covariance of the random variable with itself,and it is often represented by ,,,,or .
Escherichia coli ( ESH-ə-RIK-ee-əKOH-lye) is a gram-negative,facultative anaerobic,rod-shaped,coliform bacterium of the genus Escherichia that is commonly found in the lower intestine of warm-blooded organisms. Most E. coli strains are harmless,but some serotypes such as EPEC and ETEC are pathogenic,can cause serious food poisoning in their hosts and are occasionally responsible for food contamination incidents that prompt product recalls. Most strains are part of the normal microbiota of the gut and are harmless or even beneficial to humans (although these strains tend to be less studied than the pathogenic ones). For example,some strains of E. coli benefit their hosts by producing vitamin K2 or by preventing the colonization of the intestine by pathogenic bacteria. These mutually beneficial relationships between E. coli and humans are a type of mutualistic biological relationship —where both the humans and the E. coli are benefitting each other. E. coli is expelled into the environment within fecal matter. The bacterium grows massively in fresh fecal matter under aerobic conditions for three days,but its numbers decline slowly afterwards.
Eucalyptus is a genus of more than 700 species of flowering plants in the family Myrtaceae. Most species of Eucalyptus are trees,often mallees,and a few are shrubs. Along with several other genera in the tribe Eucalypteae,including Corymbia and Angophora,they are commonly known as eucalypts or "gum trees". Plants in the genus Eucalyptus have bark that is either smooth,fibrous,hard,or stringy and leaves that have oil glands. The sepals and petals are fused to form a "cap" or operculum over the stamens,hence the name from Greek eû ("well") and kaluptós ("covered"). The fruit is a woody capsule commonly referred to as a "gumnut".
In physics,engineering and mathematics,the Fourier transform (FT) is an integral transform that takes a function as input and outputs another function that describes the extent to which various frequencies are present in the original function. The output of the transform is a complex-valued function of frequency. The term Fourier transform refers to both this complex-valued function and the mathematical operation. When a distinction needs to be made,the output of the operation is sometimes called the frequency domain representation of the original function. The Fourier transform is analogous to decomposing the sound of a musical chord into the intensities of its constituent pitches.
eBay Inc. is an American multinational e-commerce company based in San Jose,California,that allows users to buy or view items via retail sales through online marketplaces and websites in 190 markets worldwide. Sales occur either via online auctions or "buy it now" instant sales,and the company charges commissions to sellers upon sales. eBay was founded by Pierre Omidyar in September 1995. It has 132 million yearly active buyers worldwide and handled $73 billion in transactions in 2023,48% of which was in the United States. In 2023,the company had a take rate of 13.81%.
Eric Lynn Wright,known professionally as Eazy-E,was an American rapper who propelled West Coast rap and gangsta rap by leading the group N.W.A and its label,Ruthless Records. He is often referred to as the "Godfather of Gangsta Rap".
In physics,mass–energy equivalence is the relationship between mass and energy in a system's rest frame,where the two quantities differ only by a multiplicative constant and the units of measurement. The principle is described by the physicist Albert Einstein's formula: . In a reference frame where the system is moving,its relativistic energy and relativistic mass obey the same formula.
In astrodynamics,the orbital eccentricity of an astronomical object is a dimensionless parameter that determines the amount by which its orbit around another body deviates from a perfect circle. A value of 0 is a circular orbit,values between 0 and 1 form an elliptic orbit,1 is a parabolic escape orbit,and greater than 1 is a hyperbola. The term derives its name from the parameters of conic sections,as every Kepler orbit is a conic section. It is normally used for the isolated two-body problem,but extensions exist for objects following a rosette orbit through the Galaxy.
WALL-E is a 2008 American animated romantic science fiction film produced by Pixar Animation Studios for Walt Disney Pictures. The film was directed by Andrew Stanton,produced by Jim Morris,and written by Stanton and Jim Reardon. It stars the voices of Ben Burtt,Elissa Knight,Jeff Garlin,John Ratzenberger,Kathy Najimy,and Sigourney Weaver,with Fred Willard in a live-action role. The film follows a solitary robot named WALL-E on a future,uninhabitable,deserted Earth in 2805,left to clean up garbage. He is visited by a robot called EVE sent from the starship Axiom,with whom he falls in love and pursues across the galaxy.
An electronic cigarette (e-cigarette),or vape,is a device that simulates tobacco smoking. It consists of an atomizer,a power source such as a battery,and a container such as a cartridge or tank. Instead of smoke,the user inhales vapor. As such,using an e-cigarette is often called "vaping". The atomizer is a heating element that vaporizes a liquid solution called e-liquid,which quickly cools into an aerosol of tiny droplets,vapor and air. The vapor mainly comprises propylene glycol and/or glycerin,usually with nicotine and flavoring. Its exact composition varies,and depends on several things including user behavior.
In probability theory and statistics,the Poisson distribution is a discrete probability distribution that expresses the probability of a given number of events occurring in a fixed interval of time if these events occur with a known constant mean rate and independently of the time since the last event. It can also be used for the number of events in other types of intervals than time,and in dimension greater than 1.
In geometry,the major axis of an ellipse is its longest diameter:a line segment that runs through the center and both foci,with ends at the two most widely separated points of the perimeter. The semi-major axis is the longest semidiameter or one half of the major axis,and thus runs from the centre,through a focus,and to the perimeter. The semi-minor axis of an ellipse or hyperbola is a line segment that is at right angles with the semi-major axis and has one end at the center of the conic section. For the special case of a circle,the lengths of the semi-axes are both equal to the radius of the circle.
References
- ↑ "Guide Parlementaire Canadien". 1976.
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